Hi. I would like to add an electric heater in my garage for supplemental heat. I am looking at a Dayton unit that hangs from the ceiling because I dont have any wall space for a wall type unit. The Dayton heater requires a 30 amp breaker, but I only have room left for one single pole breaker in my panel. Am I going to have to add a sub panel? Is there any way to consolidate some of the other 15 amp breakers to make room for the 30 amp? Any advise is welcome. Thanks.